10K INHERITANCE, FERTILITY, AND SEX IN PIGEONS. 



'I' MILK 79 (continued). 



1-uir C. 

 cT Parent died 2/?/09. One (not recorded which) of the sons from 190S then put here with dam; his 



color was normal (see pi. 18). 



G 1. 3/31/09; no record. H 1. No record. I 1. No record. 



G2. 4/2/09; no record. H 2. No record. 12. No record. 



J. 7/18 hatched 11 color gray rock, 2 black bars (see pi. 18). 



K. 11/8 hatched 12 adult color like parents pale gray, white bars. (G 15, G 10) 



1 "The 'red' in the Juvenal feathers is about the same as the red in the adult feathers of No. 1 above; i.e., this bird is a 

 step higher in evolution than No. 1 was. The adult bars in No. 7 are red with black borders." 



- "The Juvenal white pouter (9) came at the end of the season (see record) and the dark gray pouters with red bars 

 (black-edged) came later in season, and so far (Mar. 29) these birds, although mated, and making nests and sitting, have 

 produced no eggs." (R 10) 



TABLE 80. Gray Rrunn pouters in brother-sister matings. 



Pair 1. 



cf 2; two white bars edged with black, body gray, " sprinkled with black." 

 9 3; two white bars edged with black, body gray without black. 



"Previous to July 1909 this pair raised 3 young; 2 were like the parents and a third resembles the others, 

 but was hatched about June 25, and is weak in some respects. Among other things, the legs diverge a little 

 more than they should, and the 'fundamental barring' 1 is apparent through failure of the normal production 

 of pigment. The fundamental liars have here wrought conspicuous effects upon the tail, flights, tail coverts, 

 secondaries, and other parts." Tins bird seems to have been the last bird produced in 1909. The record for 

 1910 is also complete with the following pair of eggs. EDITOR. 



o fC 1. 3/14/10; hatched; Juvenal light gray, 2 white bars (and fundamental bars). 

 \C 2. 3/16/10; hatched; Juvenal color dark gray, 2 black bars, with trace of red. 



Pair 2. 



c? 4; gray 2 , with white bars edged with black. 



9 C; gray, with white bars edged with black. 



A 1. 2/3/09; no test. B 1. 3/10; killed. C 1. 4/15; no record. D 1. no record. 



A 2. 2/5/09; no test. B 2. 3/12; killed. C 2. 4/17; no record. D 2. no record. 



E 1. 8/9; hatched; rock gray, with black bars (see pi. 18). 

 E 2. 8/11; hatched; color red throughout (see pi. 18). 



Pair 3. 



d* 7; dark gray; bars red with black borders. 

 9 X; dark gray; bars white with black borders. 

 A 1. ?/09; failed to hatch. 

 A 2. 7/09; failed to hatch. 

 B 1. 4/1; hatched; no record. 

 B 2. 4/3; hatched; no record. 



9C 1. 5/10; hatched; color of parents, dead 9/1/09 (see pi. 17). 



cfC 2. 5/12; only white and brown orange; legs diverge; dead 2/12/10 (see pi. 17); frills. 

 D 1. 7/6; no record. 

 1) 2. 7/8; no record. 

 cfE 1. 8/21; hatched; color rock gray, with red-orange bars. 



E 2. 8/23; hatched; color red-orange throughout, basal parts of feathers white, no bars (see pi. 14). (G 16, G 15) 



1 For the explanation of this barring see Chap. VIII, Vol. I, of these works and Riddle, Biol. Bull. 1908. EDITOR. 



2 "This male is not pure rock-gray; there are touches of blackish on the wing coverts." 



TABLE 81. 



d" Black Briinn pouter; with 2 white bars (from fancier). 

 9 Black Brunn pouter; with 2 white bars (from fancier). 



A 1. 3/29/08 1 no record of color or death. B 1. 6/4 3 no record of color. 



d*A 2. 3/31/08 2 color of parents. B 2. 6/6 4 no record of color 



9C 1. 8/17 5 gray with 2 bars black; alive 4/10/09. 1 



C 2. 8/19 gray with 2 bars black; died before 4/10/09. 



A 1. 4/12/09 "guinea marks"; white bars partially replaced by red and black. 2 



9 A 2. 4/14/09 7 anterior bar black, 3 posterior bar partially replaced by red and black. 



? 1. 7/13 8 "guinea marks"; 2 bars different. 



9 ? 2. 7/15 9 anterior bar, black, 3 posterior bar mostly black. (G 16) 



1 "A pair of young hatched in September 1908 were both gray with two bars black. One of these died, sex not noted. 

 The other now alive (4/10/09) is a female (!) and mated with a black barb of 1909." In view of this statement it seems prob- 

 able that the colors of Nos. 1, 3, and -1 were, in most cases at least, normal. EDITOR. 



t No. 6 died at 4 J- months; No. 7 at 10 weeks (white). 



* Black bars in the black offspring means that the bars scarcely exist as differentiations in the coloration of the wing. 

 EDITOR. 



